package com.jiang.interceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

public class MyInterceptor implements HandlerInterceptor {

	/**
	 * 执行方法前的拦截
	 */
	@Override
	public boolean preHandle(HttpServletRequest arg0, HttpServletResponse arg1, Object arg2) throws Exception {

		System.out.println("****方法执行前的拦截!");
		// 返回true继续执行，返回false不往下走了
		return true;
	}

	/**
	 * 执行方法时的拦截
	 */
	@Override
	public void postHandle(HttpServletRequest arg0, HttpServletResponse arg1, Object arg2, ModelAndView arg3)
			throws Exception {
		System.out.println("****方法执行中的拦截!");
	}

	/**
	 * 执行方法后的拦截
	 */
	@Override
	public void afterCompletion(HttpServletRequest arg0, HttpServletResponse arg1, Object arg2, Exception arg3)
			throws Exception {
		System.out.println("************方法执行后的拦截!");
	}

}
